Things I liked:The gun is almost completely composed of metal, giving the gun a very sturdy feeling. The receiver is metal on the upper level while the lower part of the receiver is plastic. Of course, the best feature of the gun is the blowback. The slide is composed of metal along with body of the gun, giving the blowback a nice metallic, "cling" noise. This gives the gun an even more realistic tone, sounding like an authentic silenced MP5. This gun shoots hard at around 380 to 400 fps, and the gun weighs in about 7 to 8 pounds. Overall, this gun really impresses me on Echo1's craftsmanship. The metal parts follow: Gears, gearbox, bushings, silencer, charging handle, clip, body (Excluding lower receiver, grip, J-stock, battery compartment), sights, and the list goes on.Things I would have changed:The slide catch for the stock is plastic, and the J-stock stopped locking within the first week. I believe the shipping and the handling of the package must of been the cause of this problem. I would hope that in the future this part would be metal.What others should know:The rubber rings for the pins that hold the grip in the front keep popping in and out. This is very frustrating because the cover gets jammed. Also the selector switch fell off during a game, probably because of the shipping.

Things I liked:Hey Pyramyd Air Shoppers - this is Carp from CQB Radio and I wanted to thank Pyramyd Air for sending me this gun for review. Overall a great gun - Echo 1 continues to impress me. This gun weighs in at about 8 lbs. and they used a lot of metal in the construction. 4-position stock, 200 rd. metal hi-cap mag, 3 sling mounts, and a battery is included. Of course, the reason that people want this gun is because of the blowback, and it doesn't disappoint at all. The blowback is crisp and has a great, metallic sound. Range is 130 feet give or take. FPS is between 380-400. Things I would have changed:One thing that I'd like to see is another mag included, a 9.6 v. battery, and maybe a sling too. The one design flaw I see is the set of tabs that hold in the foregrip - they are a little small and could be easily lost. They also don't seem to slide into place too securely. This is not a deal breaker, just something to be aware of.What others should know:I'd say this is a great gun for a great price. It's a little hot for most CQB fields, but with a TM velocity reducer or a Mad Bull Crawler Barrel, that could be taken care of. It's definitely usable for woodland or other outdoor battles. Two thumbs up.